Sciprts: Set pipefail or remove pipes

Errors in pipes are ignored otherwise

packaging/linux/buildpackage.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # OpenRA packaging script for Linux (AppImage)
 
-set -o errexit || exit $?
+set -o errexit -o pipefail || exit $?
 
 command -v tar >/dev/null 2>&1 || { echo >&2 "Linux packaging requires tar."; exit 1; }
 command -v curl >/dev/null 2>&1 || command -v wget > /dev/null 2>&1 || { echo >&2 "Linux packaging requires curl or wget."; exit 1; }

packaging/linux/openra.appimage.in

@@ -11,6 +11,7 @@ if [ -n "${APPIMAGE}" ]; then
 	LAUNCHER=${APPIMAGE}
 
 	APPIMAGEID=$(printf "file://%s" "${APPIMAGE}" | md5sum | cut -d' ' -f1)
+	test -n "${APPIMAGEID}"
 	LAUNCHER_NAME="appimagekit_${APPIMAGEID}-openra-{MODID}.desktop"
 	LAUNCHER_PATH="${HOME}/.local/share/applications/${LAUNCHER_NAME}"
 	export SDL_VIDEO_X11_WMCLASS="openra-{MODID}-{TAG}"